Oil filter



April 169 935 J. H. RIEHLMANN 1,997,746

OIL FILTER I Filed June 14, 1935 Patented Apr. 16, 19.35

PATENT @FFlCE OIL FILTER John H. RiehlmanmMemphis, Tenn., assigner ofone-half to Harry Kabako'ff, Memphis, Tenn.

Application June 14, 1933, serial N0. 675,811

2 Claims.

'I'his invention is an oil filter and has for its lobject the provisionof a very simple and inexpensive lter which will operate eiciently toremove impurities from oil and similar liquids, the

invention being designed primarily forl use upon automobiles forfiltering the oil or the fuel.

Another object of the invention is to provide a lter for the purposesstated in which the parts may be very easily and quickly assembled ordisassembled when cleaning or renewal is necessary.

The invention resides in certain features which will be hereinafteriirst fully described and more particularly defined in the appendedclaims.

In the accompanying drawingz- Figure 1 is a longitudinal section of alter embodying the present invention.

Figure 2 is a section on the line 2 2 of Figure 1.

Figure 3 is a section of the upper end of the iilter taken at rightangles to Figure 1.

In carrying out the invention, I provide a jar or 4cylindrical containerI which may be of any suitable material and has its bottom preferablyintegral with its sides. The upper open end of the container is providedwith an annular ange 2 upon which is secured a cover 3, a gasket l ofany suitable material being interposed between the cover and the flangeto prevent leakage. The cover is provided centrally/with a threadedopening which receives a nipple 5 and on the underside of the cover,aligned axially with the nipple, is a boss Sywhich is engaged by thehead 1 of a post 8 which depends from the boss and has a threaded socket8' in its lower end to receive a clamping bolt 9. The bolt 9passes'through a plate I0 having an annular rim or ange' Il andconstituting a cap or head receiving the lower end of the filteringbody. Said body Aconsists of concentric cylinders I2 and I3 offoraminous material having sulcient rigidity to retain their shape and afilling `Il of cotton, wool or-similar material which is disposedbetween the two cylinders and has its lower end folded around the lowerend of the inner cylinder, as shown at I5. The upper end of the filleris folded around the upper end of the inner cylinder, as shown at I6,and an upper cap or head I1 is fitted around the upper end of thefiltering body as clearly shown in Figures .1 and 3. This head or uppercap I1 is provided with a central opening through which the boss iextends so that an annular shoulder I 8, formed on the boss, will restupon the cup as will be understood. Before` the cover is fastened by thebolts inserted through the same and the ange 2, it is rotated so thatthe boss 6 will be (ci. 21o-18's) turned home within the head 1 andthereby clamp the iiltering body rmly in place, it being understood, ofcourse, that the bolt 9 is turned home against the bottom of thefiltering body in order to secure the lower end. 'Ihe nipple 5, asclearly shown in the drawing, is provided with a central flange toreceive a turning tool whereby it may be turned home in the cover andthe upper .end of the nipple receives a coupling collar I9, whereby afeed pipe 20 is connected to the filter. Located eccentrically in thecover is a threaded outlet opening receiving a nipple 2l similar in allrespects to the nipple 5 and having the outlet pipe 22 connected theretoby a. coupling 23, as shown in Figure l, as will be understood.

The construction and arrangement of the several parts being thus madeknown, ity is thought the operation and advantages of the device will bereadily understood and appreciated.

The liquid enters through the boss 6 and the d head 1, the later beingprovided with a port or passage 24 leading to its side, as clearlyshown. The liquid will descend within the filtering body and by itsinherent pressure will iiow through the perforations of the cylinders I2and I3 and through the interstices of the filler I4, the latter servingAto effectually prevent the passage of dust and other foreign particleswhich may be in the liquid. The liquid will be confined within thecontainer I and will rise to the top thereof and then flow over theupper cap I1 and pass out through the nipple 2| and the outlet pipe inan obviousmanner. By causing the liquid to ow downwardly, as stated, theforeign particles which cannot go through the filtering cloth or fillerwill be prevented from agitating and will settle at the bottom so thatthe life of the lter will be prolonged, and this result is aided byhaving the discharge at the top, inasmuch as if for any reason anyforeign matter v,should pass through the filter, it would settle at thebottom of the container together with any water or other moist`elements. Whenever it should be necessary to clean the lter all that isto be done is to remove the cover, whereupon the filtering body may belifted from the container without disturbing the cont er. When renewalof the filtering cloth sho d be necessary, the cap III, the cylindersI2, I3, and the illler 24 may be easily removed and a new fillersubstituted f or the worn one in a few minutes. The ller is reinforcedon both sides, thereby lessening the liability of punctures in the eventthe cloth should become clogged.

Having described the invention, I claim:

1. A filter comprising a container having an open upper end and a closedlower end, a cover for closing the open upper end of the container andprovided with inlet and outlet openings and a bossformed on the underside of the cover concentric with the inlet opening, a ltering bodyconsisting of inner and outer spaced foraminous cylinders and a filterheld by and between said cylinders, a post having a port in its upperend and a socket in the lower end thereof, said post being fitted to theboss with the port communicating with the inlet opening, an upperflanged cap closing one end of the cylinders and having an opening forreceiving the boss, a lower flanged cap for closing the opposite end ofthe cylinders and having an opening registering with the socket of thepost, and a fastening member positioned between the lower extremity 0fthe post and the closed end of the container.

2. A lter comprising a container having an open upper end and a closedlower end, a cover secured upon the open upper end of the container andprovided with inlet and outlet openings, a boss formed on the under sideof the cover concentric with the inlet opening, a filtering bodyconsisting of inner and outer spaced foraminous cylinders and a filterheld by and between said cylinders, a post having a port in its upperend and a socket in the lower end thereof, said post being fltted to theboss with the port communicating with the inlet opening, an upperflanged cap closing one end of the cylinders and having an opening forreceiving the boss, a lower flanged cap for closing the opposite end ofthe cylinders and having an opening registering with the socket of thepost, and a fastening member threadedly engaging in the socket of thepost and positioned between the closed end of the container and lastmentioned cap for clamping the ends of the filtering body between saidcaps.

JOHN H. RIEHLMANN.

